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3 years ago

If a scale drawing uses a scale of 1:12, then 2 1/2 inches on the model represents 2 1/2 feet. True False

Mathematics

2 answers:

Ivahew [28]3 years ago

4 0

I believe the answer is True :)

Hope this helps and have a wonderful day

Inessa [10]3 years ago

4 0

I think true, because it would translate.

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Find the measure of the angle indicated in bold

GuDViN [60]

Answer:

3/2 =x

Step-by-step explanation:

These two angles are interior angles. They add up to 180 degrees

20x+5 = 24x-1

Subtract 20x from each side

20x-20x+5 = 24x-20x-1

5 = 4x-1

Add 1 to each side

5+1 =4x-1+1

6 =4x

Divide by 4

6/4 = 4x/4

3/2 =x

5 0

3 years ago

A packet of garden seeds contains 250 seeds. The information printed on the packet indicates that the germination rate for this

Westkost [7]

Answer:

Expectation=240

standard deviation=3.098

Step-by-step explanation:

This is a binomial probability function with n=250 and probability of success is 96%

-The expected value is calculated as:

$E(X)=np\\\\=250\times 0.96\\\\=240$

Hence, the expected germination is 240 seeds

b. From a above, we have the value of p=0.96 and n=250.

The standard deviation of germination is therefore calculated using the formula:

$\sigma=\sqrt{np(1-p)}, \ \ \ \\\\=\sqrt{250\times 0.96(1-0.96)}\\\\\\=3.098$

Hence, the standard deviation of germination is 3.098

8 0

2 years ago

A circle is inscribed in a square is 10 inch sides what is the circumference of the circle use 3.14 as an approximation for pie

MissTica

Answer:

31.4 inches

Step-by-step explanation:

If a circle is inscribed in a square then diameter of circle inscribed is same as side as of square.

In the given problem it is given that side of square is 10 inches.

So diameter of circle inscribed is 10 inches

we know radius of circle is half of diameter of circle

Thus, radius of circle inscribed = diameter of circle/2 = 10/2 = 5inches.

Expression to calculate circumference of circle is given by $2\pi r$

where r is the radius of circle.

Thus circumference of circle inscribed is

$2*\pi *5\\=> 10*3.14 \\=> 31.4$

Thus, circumference of circle inscribed is 31.4 inches

6 0

3 years ago

Please help ASAP! X= A) 4 B) 7 C) 9

melisa1 [442]

Answer:

C) x = 9

Step-by-step explanation:

When two segments intersect in a circle like so, the product of the two parts of one segment will be equal to the product of the two parts of the other segment.

So, 3 * 6 = x * 2

Multiply: 18 = x * 2

Divide: x = 9

8 0

3 years ago

Read 2 more answers

Rock-music sales represented 24.8% of the total music sales in 2000. By 2007, rock-music sales represented 32.4% of the total mu

baherus [9]

Answer:

Unit Rate of Change = 1.27%

Step-by-step explanation:

In 2000, t=1 and Total Music sales = 24.8%

In 2007, t=7 and Total Music sales = 32.4%

The Slope $m=\dfrac{32.4-24.8}{7-1} =\dfrac{7.6}{6}=1.27\%$

The Unit Rate of Change is 1.27% and it means that the Total Music Sales Increased by approximately 1.27% every year.

8 0

3 years ago

Read 2 more answers